Honestly, I would also feel confused to correct the bug. The help of a zimbra professional would be more than appreciated. It can be only due to a change inside Zimbra (ldap for example) introduced in this new version. So they may know better than us how to search.

------- Comment #4 From Bill Hwang 2012-04-23 10:55:36 [reply] -------
The posix/samba integration zimlet has never been officially supported and
there are no plans to maintain it.

So what does that mean? You will leave everyone hanging? It would have been nice to let everyone know that these 2 admin extensions would be broken after the upgrade, with absolutely no plans to fix it or help people get it working again..

This also prevents me from updating 2 installations. I've been using this feature for several years now and it was a very important part of Zimbra!
Hopefully there will be a solution soon - for me there is no Zimbra without it.